Watch case



FIG. 1 is a front elevational view of a watch case showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a right side view thereof, the left side view being a mirror image;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a top,front,right side perspective view thereof. 

The ornamental design for watch case, as shown and described. 